Acetylene-gas generator.



11. v NEUKIRCH. AOBTYL'BNB GAS GENERATOR.

APPLICATION TILED DEG. 26,1906

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THE-NORRIS PETERS ca, WASHINGTON, n. c.

v PATENTED SEPT. 24, 1907.-

nmrnn STATES PATENT orrron.

HUBERT VALENTIN NEUKIRCH, OF ZWIOKAU, GERMANY, ASSIGNOR TO ERNSTFREYTAG, OF ZWICKAU, GERMANY.

ACETYLENE-G-AS GENERATOR.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed December 26,1906- Serial No. 349,558.

To all whom it may concern:

Be it known that I, HUBERT VALENTIN NEUKIRCH, a subject of the Emperorof Germany, and a resident of Zwickau, Saxony, Germany, have invented acertain new and useful Improvement in Acetylene-Gas Generators, of whichthe following is a specification.

This invention'relates to an acetylene gas generator constructed on thedrip system wherein the excess gas evolved is led from the gas holder toan auxiliary burner to be consumed there.

The novel feature of the present construction consists in the connectionof the auxiliary burner tube with the -upper part of the water containerso that said tube has a doublefunction, being used as air supply tube tothe water container at normal gas pressure (dynamic pressure) and at theauxiliary burner tube for leading off and consuming the excess gas withincreased gas pre sure. In known apparatus with a water seal fitted intothe auxiliary burner tube such a double function is impossible.

In the accompanying drawings, Figure 1 is a vertical section of agenerator embodying my invention, and Fig. 2 is a cross section throughthe main chamber and through the main and supplementary burners of Fig.1.

As shown, the carbid holder a and the water container b are connected toone another, gas tight, at c. The water container b is provided with afilling orifice cl which is closed gas tight while the burner is in use.From the carbid holder a a tube is led direct to the main burner tube h.The water container is always in communication with the atmospherethrough the auxiliary burner tube 72 (separate from h) and the pipe 9closed by a perforated cover or sieve 9 On the other hand it isconnected with the carbid holder by the drip pipe e having the openings90 'and the pipe 1' the top of which is closed by a perforated cover orsieve i, and with a bottom plate having perforations y therein. Withnormal evolution of gas, the gas is consumed by the burner h while theair passes through the auxiliary burner h and the pipe 9 to the waterlevel in the water container b, so that the drip apparatus releases anumber of drops per second corresponding to adjustment of the valve e,which is provided with a hand piece e and an upper threaded end 0. Inconsequence of the slight vacuum produced in the water-container by thecombustion of gas in the main burner, air is caused to stream into theapparatus through the tube h siderable resistance to the gas.

With increase of gas pressure when the main burner h can no longerconsume the gas evolved the excess gas flows through the pipe 2' whichis closed by sieves to the pipe 9 and to the auxiliary burner 7?, where,being ignited from the main burner, it is consumed.

So long as gas is produced it will follow the path of least resistance,that is through the burner tube h to the main burner. In no case willthe gas pass through the tubes i and 9 closed by sieves on its way tothe main burner'at normal pressure, since the sieves offer con- Owingtothe fiow of the gas through the tube h to the tube 1' in normalproduction of gas a suction action is exerted so that in fact withnormal production of gas air enters through the auxiliary burner tube kand through the tube 9, which air presses on the water level in theholder b. Should any air pass through the. tube 1' into the gas holderitself, there would be. no risk of explosion, for gas mixed with airwould only explode when the flame is open. The present lamp is howevercompletely closed so that no flame can pass into the interior of thelamp and a mixture of air and gas in the interior of the lamp would dono harm.

The sieves i and g are simply sieves having very fine perforations whichpermit the passage of gas only,

and prevent, in case the lamp is upset, the water passing to the carbidholder or outwardly through the auxiliary burner pipe. Owing to theadhesion of liquid to the sides of the perforations in said sieves, nowater can pass through said sieves.

Having now described my invention, what I claim carbid holder, andsieves closing said last mentioned pipe,

substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HUBERT VALENTIN NEUKIRCH.

Witnesses E. W. BUCKLIN, IDA FRIEDRICH.

